Compound interest calculator

Growth of your capital with monthly, quarterly or yearly compounding.

Final amount269,597,014 Toman
Compound interest169,597,014 Toman
Effective annual rate21.94%
Capital growth rate2.696×

About the Compound interest calculator

In compound interest, the interest from each period is added to the principal, and the next period earns interest on the larger amount. This is why, over long periods, the difference from simple interest becomes very significant.

How to use it

  1. 1Enter the principal amount and the annual rate.
  2. 2Specify the duration in years.
  3. 3Select the compounding period.

Why use this tool?

  • See the effect of compounding over the long term
  • Compare monthly and annual compounding periods
  • Suitable for savings and investment planning

Calculation formula

Final amount = Principal × (1 + Rate ÷ n)^(n × Years)

Worked examples

Sample calculation

100 million at a 20% monthly-compounded rate over 5 years grows to about 270 million.

Answers to popular searches

Compound interest on 100 million Toman over 5 years

People search for: “compound interest on 100 million over 5 years”

With a 20% annual rate and annual compounding, the capital earns interest on the new amount each year.

Principal
100,000,000 Toman
Annual rate
20%
Duration
5 years

Final value of about 248,832,000 Toman

Calculate with the Compound interest calculator

Difference between simple and compound interest in one example

People search for: “difference between simple and compound interest”

Simple interest applies only to the principal, while compound interest is calculated on the principal plus previous interest.

Principal
100,000,000 Toman
Annual rate
20%
Duration
5 years

Simple interest of 100 million versus compound interest of about 148.8 million Toman

Calculate with the Simple interest calculator

Frequently asked questions

What does the compounding period mean?

It means how often interest is added to the principal; the shorter the period, the greater the interest.

What is compound interest?

Compound interest means the interest from each period is added to the capital, and the next period's interest is calculated on the sum of the capital and previous interest.

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